Easy Crispy Tuna Medallions with Grated Daikon Ponzu Sauce

Ingredients

• 1 block (about 8 oz or 225 g) fresh tuna
• 2 tbsp soy sauce
• 2 tbsp mirin
• 1 tbsp sake
• 1 tsp fish sauce
• 1 tsp sesame oil
• 1/4 cup all-purpose flour
• 1 large egg, beaten
• 1/2 cup panko breadcrumbs
• 2 tbsp frying oil (vegetable or canola)
• 1/2 cup grated daikon radish
• Ponzu sauce, to preference
• Shichimi spice, to taste